发明名称 |
Method for the removal of excess amounts of water-soluble amines from mannich condensation products. |
摘要 |
The present invention provides a method for removing excess amounts of water-soluble amines from a diluted crude Mannich condensation product containing about 40 to 80 weight percent crude Mannich condensation product in an inert solvent which comprises: a) filtering the diluted crude Mannich condensation product in the presence of magnesium silicate and water, and in the further presence of a filter aid when the particle size distribution of the magnesium silicate is such that the average particle size is below about 50 microns; and b) recovering a filtrate containing a Mannich condensation product having less than about 0.05 mEq/g of water-soluble amine. |
申请公布号 |
EP1193245(A1) |
申请公布日期 |
2002.04.03 |
申请号 |
EP20010308080 |
申请日期 |
2001.09.24 |
申请人 |
CHEVRON ORONITE COMPANY LLC |
发明人 |
GRAY, JAMES A. |
分类号 |
B01D15/00;B01D37/02;C07C213/10;C07C215/50;C08F6/06;C08F8/30;C08F8/32 |
主分类号 |
B01D15/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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